Silencer mouthpiece for telephone transmitters



March 2i, 1933. E. ugsgw 1,962,556

SILENCER MOUTHPIECE FOR TELEPHGNE TRANSMITTERS Filed April 11, 1952 INVENTOR EMMA v. HUSSCM ORNEY Patented Mar. 21, 1933 PATENT OFFICE EMMA V. HUSSON, OF BROOKLYN, NEW YORK SILENCER MOUTHPIECE FOR TELEPHONE TRANSMITTERS Application filed April 11,

This invention relates to new and useful improvements in a silencer mouthpiece for tele hone transmitters.

T e invention has for an object the construction of an article of the class mentioned which is characterized by a tubular member closed at the front end and adapted for attachment at the rear on a telephone transmitter, and a mouthpiece rotative on the 19 front of the tubular member and having apertures adapted to align with similar apertures on the front of the tubular member and to be moved to a position in which the apertures are out of alignment.

As a further object it is proposed to provide means for limiting turning of the mouthpiece to one or the other of the positions mentioned.

Furthermore, as another object, it is proposed to arrange a flange upon the periphery of the tubular member and a second flange on the mouthpiece rotatively secured to the first flange by reason of the edges of the latter being turned over the edges of the ad- Furthermore, the invention proposes the provision of means whereby the mouthpiece automatically assumes a position in which the apertures are out of line or a position in which the apertures are in alignment or a condition wherein the mouthpiece maintains either position when placed in it.

Furthermore, the inventionproposes the construction of a device of the class described which is of simple durable construction, dependable in use and efiicient in operation, and which can be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to theappended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure Fig. 1 is a transverse longitudinal sectional view of a device constructed according to this invention.

1932. Serial No. 604,515.

Fig. 2 isan elevational view looking in the direction of the line 22 of Fig. 1.

Fig. 3is an elevational view looking in the direction of the line 3-3 of Fig. 1.

Fig. 4 is a view similar to F ig- 1 but illustrating a modified construction.

The silencer mouthpiece, according to this invention, comprises a tubular member 10 closed at the front end 11 and adapted for attachment at the rear upon a telephone transmitter. To facilitate the attachment at the rear the tubular member is formed with threads 12 adapted to engage corresponding threads on the telephone trans mitter. A mouthpiece 13 is rotative on the 5 front of the tubular member 10 and has a plurality of apertures 14 adapted to align with similar apertures 15 in the front end 11 of the tubular member or to assume a position in which the apertures are out of line. In Fig. 2 the apertures are shown in aligned arrangement. In Fig. 3 they are shown out of line. The rotative mounting of the mouthpiece 13 is accomplished by a flange 16 projecting from the mouthpiece and in intimate contactwith a flange 17 projectingfrom the tubular member. The edge 18 of the flange 17 is turned over the edge of the flange 16.

A means is provided for limiting rotation of the mouthpiece to a position in which the apertures 14, 15 are in alignment or in which they are out of alignment. This means comprises a pin 19 projecting from the flange l6 and passing through a slot 20 formed in the flange 17.

A means is also provided for urging the mouthpiece 13 into a position in which the apertures 14, 15 are aligned and adjustable to urge the mouthpiece into a position in which they are out of alignment and further adjustable to hold the mouthpiece in either position. This means comprises a resilient member 21 attached upon the head of the pin 19 and adapted to engage any one of a plurality of eye members 22, 23 and 24 projecting from the flange 17. When theresilient member 21 is connected with the eye member 22 the mouthpiece 13 will be urged in one direction and when connected with the eye member 23 it will be urged in the small distance in from the edge of a tubular neck portion 25 connected with the rearof the mouthpiece l3. This tubular portion 25 engages within a recess '26 at the root of the flange 17. In other respects this form of the invention is identical to the form previously disclosed. Q 1 v 1 In operation, a person may adjustor hold the mouthpiece 13 so that the openings 1 15 are in alignment and then conversation be held through the transmitter. Should the speaker desire to talk with others near the transmitter but also desire to prevent the transmission of the conversation over the transmitter, he may adjust, turn or allow the mouthpiece to assume a position in which the apertures 14;, 15 are out of alignment.

While I have shown and described the preferred embodiment of my invention, it is to, be understood that I donot limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is the mouthpiece into the other of said rotaon each side ofthe pin, another eye element radially relative to the pin and the-tubular member, and resilient means engageable between the pin and any of theeye elements.

In testimony whereof I have aflixed my signature.

v. HUssoiI.

1. A silencer mouthpiece for telephone transmitters, comprising a tubular member closed atthe front end and adapted for attachment at the rear on a telephone transmitter, a mouthpiece rotative on the front of said tubular member and 'having'apertures adapted to align with orbe out of alignment with similar apertures on the front end of said tubular member, and means for urging said mouthpiece into one of said rotative positions and adjustable for urging the mouthpiece into the other of said rotative positions and'further adjustable to hold the mouthpiece in either of said positions.

2. A silencenmouthpiece for telephone transmitters, comprising a tubular member closed at the front end and adapted for attachment at the rear on a telephone transmitter, a mouthpiece rotative on the front of said tubular member and having apertures adapted to align with or be out of alignment with similar apertures on the front end of said tubular member, and means for urging said mouthpiece into one of said rotative positions and adjustable for urging 

